Our work complements previous extensive mathematical literature on localized deformations in a variety of non-equilibrium settings [1]}, [2]}, [3]}, [4]}, [5]}, [6]}, [7]}, [8]}, by providing a simple physical realization of such localized deformations in equilibrium mechanical systems in a one-dimensional setting, complementing earlier work by us in two-dimensional settings [9]}. Our work also provides an example of how to employ multi-material 3D printing as a reproducible, rapid and easily realizable method for studying complex problems related to mechanically constrained growth at multiple scales. Due to the ability to control the deposition of material with very high resolution to create complex 3D structures, this approach could thus provide a practical research platform for investigating mechanical feedback on growth under different conditions, e.g. in the presence of gradients in material properties. By incorporating extensions to 2D systems, our approach could move us one step closer to understanding the two way-feedback between mechanics and growth/swelling kinetics, which is a defining feature in the growth of spatially extended structures in both materials science and biology.
